diff options
| author | Simon Glass | 2015-08-04 12:33:56 -0600 |
|---|---|---|
| committer | Simon Glass | 2015-08-05 08:44:07 -0600 |
| commit | 96a8d409a75af99ac7a9a9ba707d544f9cf44fc0 (patch) | |
| tree | 42d2df0ab57c55ce9f0a191b97fb88a7858b81ff /arch/x86/config.mk | |
| parent | 6f92ed8f1abfe94ee1c96c83c21f4092bb04ff63 (diff) | |
efi: Add 64-bit payload support
Most EFI implementations use 64-bit. Add a way to build U-Boot as a 64-bit
EFI payload. The payload unpacks a (32-bit) U-Boot and starts it. This can
be enabled for x86 boards at present.
Signed-off-by: Simon Glass <sjg@chromium.org>
Improvements to how the payload is built:
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/config.mk')
| -rw-r--r-- | arch/x86/config.mk | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/x86/config.mk b/arch/x86/config.mk index 334c10b882d..d7addd87286 100644 --- a/arch/x86/config.mk +++ b/arch/x86/config.mk @@ -34,14 +34,24 @@ OBJCOPYFLAGS_EFI := -j .text -j .sdata -j .data -j .dynamic -j .dynsym \ CFLAGS_NON_EFI := -mregparm=3 CFLAGS_EFI := -fpic -fshort-wchar +ifeq ($(CONFIG_EFI_STUB_64BIT),) +CFLAGS_EFI += $(call cc-option, -mno-red-zone) EFIARCH = ia32 EFIPAYLOAD_BFDTARGET = elf32-i386 +else +EFIARCH = x86_64 +EFIPAYLOAD_BFDTARGET = elf64-x86-64 +endif EFIPAYLOAD_BFDARCH = i386 LDSCRIPT_EFI := $(srctree)/$(CPUDIR)/efi/elf_$(EFIARCH)_efi.lds +EFISTUB := crt0-efi-$(EFIARCH).o reloc_$(EFIARCH).o OBJCOPYFLAGS_EFI += --target=efi-app-$(EFIARCH) +CPPFLAGS_REMOVE_crt0-efi-$(EFIARCH).o += $(CFLAGS_NON_EFI) +CPPFLAGS_crt0-efi-$(EFIARCH).o += $(CFLAGS_EFI) + ifeq ($(CONFIG_EFI_APP),y) PLATFORM_CPPFLAGS += $(CFLAGS_EFI) |